Slicing-machine.



A. L. DAVIS.

SLICING MACHINE.

APPLICATION FILED NOV. 18. 1909.

Patented Aug. 17, 1915.

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SLICING MACHINE.

APPLICATION FILED NOV. 18, 1909.

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Patented Aug. 17, 1915.

ALL DAVIS.

SLICING MACHINE.

APPLICATION mg!) NOV-18, 1909.

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SLIGING-IIlEAGHINE.

Specification of Letters Patent.

Application filed November 18, 1909. Serial No. 528,755.

To all whom it may concern:

Be it known that I, ALBERT L. DAVIS, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Slicing-Machines; and I do "hereby declare the following to be a full, clear, and exact description of the invention, such as w1ll enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in slicing machines, and more particularly to the class of devices shown in my Patent No. 968,134, for slicing machines, and its object is to provide the same with various new and useful. features hereinafter more fully described and particularly pointed out in the claims, reference being had to the accompanying drawings in which:

Figure 1 is an elevation of a device embodying my invention with parts broken away shown from the front of the machine; Fig. 2 an elevation shown from the right of Fig. 1 with the crank wheel removed; Fig.

3 elevation viewed from the opposite of Fig: 2 with portions broken away; Fig. 4:

a detail in elevation of a portion of the feeding mechanism; Fig. 5 a section on the line 55 of Fig. 4; Fig. 6 an enlarged detail of a portion of the feeding mechanism in elevation; Fig. 7 a horizontal sectional detail ofthe journal bearing for the cutter shaft; Fig. 8 a vertical sectional detail of the rock shaft on which the carriage is mounted. Fig. 9 a detail of the portiop of the driving mechanism in horizontal section; Fig. 10 a plan view of the carriage and ways; Fig. 11 a detail in vertical section of one of the ways for the carriage; Fig. 12a detail of the locking mechanism for the clamp; and, Fig. 13 a vertical section on.

the line 1313 of Fig. 7

Like numbers refer to the figures.

1 represents the driving shaft provided with a crank wheel 2 and handle 3 for manually operating the machine. This shaft 1 is geared to a counter-shaft 6 arranged at right angles thereto by bevel gears 4 and 5. On the counter-shaft is a sprocket wheel 7 connected by a chain 8 to a sprocket pinion 9 integral with a concave disk 10, on which is mounted a circular cutter 11 having a sharp edge adapted to sever the material.

12 is an arm extending up from the frame like parts in all of near the cutter 11 to the upper end of which is pivoted an arm 13 provided with a handle Patented Aug. 17, 1915.

14, on which arm 13 is journaled an emery wheel 15 adapted to engage and act upon the edge of the cutter 11 to sharpen the same.

16 is a frame of suitable form, preferably cast mtegral, and pivoted to oscillate on a shaft 17 Thisframe is oscillated by means of a crank 16 on the counter-shaft 6 and a connecting rod 16 pivoted at its respective ends to the crank and frame. On this frame 16 1s mounted a carriage 20 supported upon laterally adjustable ways 18, the ends of these Ways projecting toward the cutter and movlng close thereto, or upturned slightly and provided with corrugations as at 19 to securely support the material acted upon by the knife. To feed the material forward over these ways, a carriage 20 is mounted thereon movable toward and away from the cutter, and on the corners of the carriage adjacent the cutter, are pivotally mounted.

ratchet bars 23 on which is a clamp 22 formed of sheet metal folded in inverted U- shape through which the ratchet bars extend and wh1ch engage the edges of openings sition, it is provided with a manually ro-' tative member 25 near the ratchet bar, carrylng a locklng cam 25 engaging the rear of the bar, and looking it in engagement with the vclamp, as illustrated in Fig. 12. This carriage 20 is slidable on the ways 18, and the ways made laterally adjustable, as illustrated in Fig. 11, by means of bolts 20 extending through elongated openings 16 in the frame 16. Toguide the carriage independently, flanges 26 engage the outer edges of the Ways and slide-thereon. To move the carriage step by step to feed the material toward the cutter, the same is provided with downwardly proecting arms 28 and 29, through which 'extends a shaft having a screw thread 27 engaging the arm 28, 'and a smooth portion 30 slidably engaging the arm 29, whereby the carriage is held down on the ways and moved thereon. This shaft is provided at its outer end with a crank 40 for manually rotating the same and for automatically turning the screw 27 step by step to feed the carriage toward the cutter and to slice the material uniformly and at different thicknesses, an elongated plate 33 is jourplate opposite the pawl with an arm 41,

which raises the plate and moves the ratchet wheel and screw forward a predetermined varc of rotation.

' To determine the reverse movement of the pawl on the ratchet 'wheel, a stop 35 is mounted on an arm 36 journaled on the shaft 27 which engages an inclined projection 34 on the rear of the pawl, throws the same out of engagement with the ratchet wheel, and stops the return movement of the plate due to the spring 43. This arm is adjustable to permit of more or less reverse movement of the pawl by means of a pin 37 extending therethrough and adapted to engage any one of a series of holes 39 in the frame 16 and arranged in series concentrio with the axis 27. This pin is mounted on a spring 38 which holds the same in engagement with the holes and serves as a lever to release the same for manually adjusting the arm 36. The arm can thus be adjusted to permit of greater or less backward movement of the pawl on the wheel 31 to determine the thickness of the slices cut from the material.

It will be noted that when the pawl is in contact with the stop 35, it is thrown out of engagement with the wheel 31, which thus permits a rearward rotation of the screw 27 by means of the crank 40 to return the carriage to starting position. The shaft 17 is secured to the frame by set screws 47 at one end and supported at the other end by an adjustable hanger 44, and the end motion of the frame 16 taken up by adjusting the hanger toward the frame by means of a screw 46 tapped into the shaft 17 and having a washer 45 thereon engaging the hanger 44 and adjustably holding the same against the frame 16. The cutter is mounted on a shaft 48 journaled in an adjustable bearing formed of an externall tapered sleeve 49 havin a longitudinal s ot therein, whereby the s eeve may be closed around the shaft by longitudinally moving the same .in a correspondingly taered, opening '50 in the frame. The sleeve is adjusted in said opening by means of outer ends. Thus by tightening hooks 52 engaging openin in the o posite sides of the sleeve at thel r inner enss and movable in radial grooves 51 in the frame, being adjusted by jam nuts 53 ontheir these nu the sleeve is moved toward thesmaller en of the openi 50 and closed up around the shaft 48 to ta e up any wear therein.

What I claim is: O 1. In a device of the character described, a frame movably mounted, ashaft rotatable in the frame, a plate having a rojection and journaled on the shaft, a re. et wheel fixed on the shaft, a pawl on the, late to.

engage the ratchet wheel, a relative y fixed arm secured adjacent the movable frame and engaged by the projection on the plate to means in any one of a plurality of positions on the frame, substantially as described. 2. In a device of the character described, a movable frame, a shaft journaled in the frame, a ratchet wheel fixed on the shaft,,a. plate journaled on the shaft, a pawl mounted on the plate and engaging the ratchet wheel, said awl having an mclined projection, an a justable arm having a stop to engage the inclined projection on the pawl and throw the same out of engagement with the ratchet wheel, and means for adjusting the arm.

3. In a device of the character described, an oscillating frame, a shaft mounted inthe frame, a ratchet wheel fixed on the shaft, :1.

on the plate to engage an turn the ratchet wheel, an arm journaled on the shaft and having a stopto engage and limit the movement of the pawl, a spring mounted on the arm, and a pin in the spring adapted to enage any one of a series of opemngs in the frame to adjust the arm.

4. In'a device of'the character described, an oscillating frame, a shaft journaled in the frame, a crank mounted on the shaft, a ratchet wheel fixed on the shaft, a plate journaled on the shaft, a awl mounted on the plate and engaging t e ratchet wheel and also having an inclined and shouldered projection, an arm journaled on the shaft, a stop on the arm to engage the inclined and shouldered (projection on the pawl, and means for a justing the arm about the axis of the screw.

In testimony whereof I afiix my signature in presence of two witnesses.

. ALBERT L. DAVIS. Witnesses: j

Gnoncmna Omen,

Lu'rnnn V. MOULTON. 

